Ruger AR-556 5.56 NATO Semi-Auto Rifle, 16 in Cold Hammer-Forged Threaded Barrel, 1:8 Twist, 2017 Mayodan NC, A2 Front & Flip-Up Rear Sight, With 3 PMAGs and Ruger Soft Case
This 2017 Ruger AR-556 is a direct-impingement AR-15 platform rifle built at Ruger’s Mayodan, North Carolina facility and receiver-marked accordingly. It features a 16-inch cold hammer-forged chrome-moly steel barrel with a 1:8 RH twist, a 1/2-28 threaded muzzle with flash suppressor, and a flat-top upper with Picatinny rail. The rifle retains its fixed A2-style front sight base paired with a Ruger Rapid Deploy flip-up rear sight. It comes with three 30-round Magpul PMAG GEN M2 MOE magazines and a Ruger-branded soft rifle case.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling and use marks are present on exterior surfaces. See photos for details.
What’s Included
- Ruger-branded soft rifle case
- Three Magpul PMAG AR/M4 GEN M2 MOE 30-round polymer magazines
Manufactured in 2017, this AR-556 carries the receiver marking "RUGER MAYODAN, NC USA" with the model marked "AR-556" and an 854- serial prefix observed. The flat-top upper provides a full-length Picatinny rail and includes a forward assist, ejection-port cover, and case deflector. M4 feed ramps and a carbine-length gas system support reliable feeding and cycling.
The 16-inch barrel is cold hammer-forged from chrome-moly steel and cut with a 1:8 RH twist to accommodate a broad range of 5.56 NATO loads. The muzzle is threaded 1/2-28 and fitted with a flash suppressor. The bore presents in excellent condition, with sharp rifling.
Sighting is handled by a fixed F-height A2-style front sight base and a Ruger Rapid Deploy flip-up rear sight. The upper’s Picatinny rail allows straightforward mounting of compatible sighting accessories if desired.
The rifle is built on 7075-T6 aluminum receivers with a Type III hard-coat anodized finish. It wears a carbine-length, two-piece polymer handguard and a 6-position collapsible stock with a 10.5-inch length of pull. Overall length is approximately 32.25–35.50 inches, with an approximate weight of 6.5 lb.
This example includes three 30-round Magpul PMAG GEN M2 MOE magazines and a Ruger-branded soft case, rounding out a ready-to-use package. The configuration aligns with the AR-556 pattern while retaining factory-correct features from its 2017 production period.